Process for making and repairing ion exchange membranes and film

Details Process for making and repairing ion exchange membranes and film Process for making and repairing ion exchange membranes and film

1993-07-14

1994-10-18

Lusignan, Michael

Coating processes

Restoring or repairing

21050027, 264 36, 427244, B32B 3500

Patent

active

053566637

ABSTRACT:
Ion exchange membranes or films are made from a solution of perfluorinated cycloalkanes, perfluorinated aromatic compounds and perfluorotrialkyl amines having a critical temperature greater than 150.degree. C. and certain carboxylic fluorinated polymers having an equivalent weight greater than 900. A process for repairing ion exchange membranes and films by spray coating the surface of the membrane or film with the solution is also claimed. The ion exchange membranes and films are useful in chloroalkali cells or fuel cells.

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